Baling-press.



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R. mesme.

BALING PRESS.

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n. memos. BALNG PRESS.

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(No Model.) 2 Sheets-Sheet 2.

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'UNITED STATES PATENT @Erica ROBERT MCBRIDE, OF EBURNE, CANADA.

BALlNG-PRESS.

:SPECIFICATION forming part of Letters Patent No. 715,409, datedDecember 9,

Application filed February 14, 1902. Serial No. 94,032. (No model.)

To @ZZ whom, it' may concern:

Beitknown that LROBERT MOBRDE, a citizen of the Dominion of Canada,residing at Eburne, in the Frovince of British Columbia, Canada, haveinvented a new and useful Baling-Press, of which the following is aspecification.

My invention relates to an improvement iu power-presses for baling hayor similar ma terial and belongs to that class known as a perpetualpress, inasmuch as long as it is 4supplied with material the work ofpressing and baling is continuous, no rest requiring to be made forwiring, dac.

My object has been to provide a machine which is simple in construction,economical in the use of power, and that will exert its greatest eertwhen the greatest pressure is required-that is, that when the loose hayis fed into the machine the compressing-plu nger comes forward at acomparatively rapid speed, but toward the finish of the stroke the speedis very much slower, but the pressing effort proportionately morepowerful. I attain this important result by the use of a togglemechanism operated by suitably-designed gear, and it is to theapplication of this principle and several minor details of theconstruction and mechanism that the success of my machine is largelydue.

The press and the manner of its operation are fully illustrated in thedrawings herewith, in which- Figure 1 is a vertical longitudinal'sectionl on the line c. a in Fig. 2; Fig. 2, a plan with tramperremoved; Fig. 3, a cross-section on the line b b in Fig. 2; Fig. 4,adetail horizontal section showing the retainers, and Fig. 5 a verticalsection of the same. Fig. 6 is a perspective of one of thedivision-boards.

The bale-press proper consists of a strong open-ended rectangularchamber 2, having at its upper side a feeding-opening 3, through whichthe loose hay is introduced and having at one end a plunger or presserhead 4, horizontally slidable endwise within the rectangular chamber thelength of the feed-space 3 and slightly beyond. This plunger 4 isoperated by a toggle mechanism composed of the link members 5 and 6, oneend of 5 being pivotally anchored to the back member 20X of themachine-frame and the free end of 6 similarly coupled to the center ofthe plunger 4. The joint-pin 7 of this toggle is coupled by theconnecting-rod 8 to a crank-pin 9a, projecting from a gear-wheel 9,attached to a cross-shaft 10, rotatable on bearings 11, suitablysupported to the framework of the machine. The wheel 9 is driven by apinion 12 on the pulley-shaft 13, rotatable in bearings 14, by thepulley or band wheel 15 from any source ofpower exterior to the machine.Fulcrumed to an upward extension of the frametimbers 2OX is thetremper-lever 15, operated by a connecting-link 17 from the toggle-jointpin 7. This'trampenlever has a downward right-angle extension 16a,suitably braced at the junction and adapted at its lower end to pressthe loose hay into the rectangular press-chamber and the path of theplunger 4. The operation of this mechanism is fully illustrated by thedot-and-dash lines in Fig. 1. The power from the belt over the pulley l5is multiplied by the pinion l2, gearing into the wheel 9, and by meansof the connecting-rod 8 and the joint-piu 7 the toggle is drawn up tothe'straight line between its end connections, forcing the plunger 4into the rectangular chamber, the further movement of the Wheel and itscrank-pin forcing the toggle system down to the position as shown, bywhich the plunger is withdrawn. Simultaneous with the withdrawal of theplunger 4 the tramper 16 is drawn down and a further supply of materialis brought into the compressor-,chamber 2 ready for the next advance ofthe plunger 4, the tramper being lifted up clear of the opening 3 as thetoggle straightens and the compressor-plunger advances to its work.Between each bale a di vision-board 205 is inserted through thefeedopening. This is simply a plain rectangular board, loosely fittingthe cross-section of thel compressor-chamber and provided withhorizontal grooves 20 across its face to enable the baling-wire to bepassed from side to side IOO hinged within the thickness of the sidewall 2a, and their free ends oppose an inclined surface 21a to theforward movement of the bale or its division-board, but a square end 21bto their return. Each retainerof the group on each side is hinged on apin 22, and they are connected together outside the side wall by the bar23, against which the ends of the flat spring 24 press. The sides of thecompressor-plunger 4 are grooved, as at 4a, to allow it to pass theretainers without pressing them in.

From the compressing-chamber 2 extends the bale-guideway 25, during thepassage along which opportunity is afforded for wiring the bales throughthe grooves referred to in the division-boards. This guideway iscomposed of a top and bottom boarding 26 and 27, secured by the crossmembers28 to the corner longitudinals 29, which are extensions of theframe members of the machine to which the operative mechanism isattached by the cross-frames. The top and bottom framing of thisguideway have no vertical members between them after leaving thecompressing-chamber, so that they may be drawn together or forced apartby the mechanism provided for the purpose at the eX- treme end'aud whichis clearly illustrated in Fig. 3. Through the ends of the longitudinals29 and their cross member 28 are the vertical stay-rods 30, which aresecured to the lower timbers by the double nuts, as shown, pass throughthe upper ones Without any fastening, but are secured to an independentcross-piece 31 above the upper crossframe 28. Secured to the top 26 ofthe guideway is a screw 32, which passes through the cross-piece 31 andhas at its upper end a hand-wheel 33, the boss of which is threadedinternally as a nut for the screw 32 and externally is provided with anannular groove 33, adapted to receive a washer 34, which is made in twohalves and securely fastened to the upper side of the cross-piece 3l. Onturning the hand-Wheel 33 the upper and lower members of the baleguideway are drawn together or forced apart and the frictionalresistance to the passage of the bales lessened or increased, and asthis frictional resistance is what the compressor-plunger acts againstin packing the bale a means is thus provided for varying the degree ofpressure with which the bales are packed, as may be required by thequality of the hay or its degree of dryness.

As a guide to the attendant in regulating the length of the bales by thetimely insertion of the division-boards in the opening 3 I providetoward the end of the bale-guideway a wheel 35, having a toothed orserrated periphery, which projects through the upper boarding of theguideway and is adapted to be rotated by the passing bale. Thecircumference of this wheel is equal to the length of bale required, anda projecting pin 36 engages the striker of an adjacent bell 37 and ringsit on the completion of a revolution.

It will be seen from the foregoing description that the construction ofmy press is very simple and that its operating mechanism is well fittedfor the purpose required, as no power is Wasted in the movement of theplunger against the resistance of the loose hay; but as it becomespacked toward the end of the stroke the effort on the plunger isconsiderable and much more than could otherwise be attained bypower-multiplying gears. The facility also with which the resistanceagainst which the plunger acts can be varied to the changingrequirements of the press is a point of considerable importance and muchenhances the value of my press. The whole machine can be mounted forconvenience of mobility on ordinary truck-wheels, as shown in Fig. 1.

Having now particularly described my press and the manner of itsoperation, what I claim as new, and desire to be protected in by LettersPatent, is-

In a baling-press of the character described; the combination with thebaling-.chamberand the main frame, including the upright 20X at the rearof the baling-chamber, said balingchamber having a feed-throat; of afollower operating in said chamber, a vertically-reciprocable trampermovable in the feed-throat of the baling-chamber, the drive-shaft 13journaled transversely of the machine at a point between thebaling-chamber and the upright 20x, the shaft 10 geared with thedriveshaft 13, a crank -wheel mounted on said shaft, avertically-swingable lever 16, pivoted at one end to the upright 20K andiixedly connected at the other end to the trarnperhead, a pair oftoggle-levers 5 and 6, a pivot 7 at the joined end of the said levers,one of the levers being pivotally connected to the follower, the otherbeing pivotally connected to the upright 2Ox in the longitudinal planeof the pivotal follower connection of the other lever, a pair oflink-arms 8 and 17, both connected with the pivot 7, the arm 8 beingpivotally connected to the crank-Wheel, and the other arm 17, pivotallyjoined to the lever 1G, all being arranged substantially as shown anddescribed.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

ROBERT MCBRIDE.

Witnesses:

ROWLAND BRITTAIN, ELLIOE WEBBER.

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